<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>CSS Reference</title>
  <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact"/>
  <style type="text/css">

    .container {
      margin: 4px;
      border: solid green 4px;
      padding-top: 1px;
      border-style: none none solid solid;
    }
  </style>
 </head>
 <body>
  <p>There must be 31 green L-shapes below and no red.</p>

  <div id="c1" class="container"><div></div></div>
  <div id="c2" class="container"><div></div></div>
  <div id="c3" class="container"><div></div></div>
  <div id="c4" class="container"><div></div></div>
  <div id="c5" class="container"><div></div></div>
  <div id="c6" class="container"><div></div></div>
  <div id="i1" class="container"><div></div></div>
  <div id="i2" class="container"><div></div></div>
  <div id="i3" class="container"><div></div></div>
  <div id="i4" class="container"><div></div></div>
  <div id="i5" class="container"><div></div></div>
  <div id="i6" class="container"><div></div></div>
  <div id="i7" class="container"><div></div></div>
  <div id="ci1" class="container"><div></div></div>
  <div id="ci2" class="container"><div></div></div>
  <div id="ci3" class="container"><div></div></div>
  <div id="ci4" class="container"><div></div></div>
  <div id="ci5" class="container"><div></div></div>
  <div id="ci6" class="container"><div></div></div>
  <div id="ci11" class="container"><div></div></div>
  <div id="ci12" class="container"><div></div></div>
  <div id="ci13" class="container"><div></div></div>
  <div id="ci14" class="container"><div></div></div>
  <div id="ci15" class="container"><div></div></div>
  <div id="ci16" class="container"><div></div></div>
  <div id="ci21" class="container"><div></div></div>
  <div id="ci22" class="container"><div></div></div>
  <div id="ci23" class="container"><div></div></div>
  <div id="ci24" class="container"><div></div></div>
  <div id="ci25" class="container"><div></div></div>
  <div id="ci26" class="container"><div></div></div>
 </body>
</html>
